Sound insulated sectional overhead door type HA
The sectional overhead door type HA is a sound insulating solution for various environments.
Available in two versions, 35 dB (T.N.O.-certified) and 50 dB (Peutz Institute-certified), the type HA are inside or outside doors which are found in and on buildings such as theatres, concert-halls, cultural centers, pop podiums and industrial compounds.
This type of door can also be produced with fire-retardant properties. This version comes as standard with a 400-volt engine, to be connected with the fire/smoke alarm system. Optionally, a back-up system will enable closing the engine operated door by power failure.